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Automatic transmission

Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 2008 PONTIAC G6
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
I have not had any trouble with the transmission shifting on my car. I took it to the store it drove fine started it back up and drove just fine went to go through the stop sign from a stop and it would not go forward, no noises no leaks no slipping. Any solutions? Hopefully the transmission is not done. Also, it comes and goes into reduced power mode; one minute it is not there turn it off then back on and there it is again. Desperately seeking help.
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Sunday, July 22nd, 2018 AT 6:22 AM

11 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

Do you have reverse?

Did you check the fluid level?

Does it make any noise?

Roy

https://www.2carpros.com/articles/automatic-transmission-problems
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Sunday, July 22nd, 2018 AT 1:10 PM
Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 8 POSTS
Yes, there is reverse only. No weird sounds only than it shifts hard into reverse. It is a sealed transmission so I cannot check the levels.
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Sunday, July 22nd, 2018 AT 6:28 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, there is a level indicator on the passenger side on the top of the transmission for fluid level. The fact you have reverse tells me the level is good.

You have an internal failure in the transmission. It is either the forward clutch, drum or piston which controls forward gears. The transmission will have to be removed and inspected for the failure.

Roy
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Monday, July 23rd, 2018 AT 1:35 AM
Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 8 POSTS
The code says transmission solenoid.
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Monday, July 23rd, 2018 AT 1:51 AM
Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 8 POSTS
Performance solenoid.
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Monday, July 23rd, 2018 AT 1:55 AM
Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 8 POSTS
And there is a code for low voltage and open Circuit A.
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Monday, July 23rd, 2018 AT 1:57 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
What is the code?

You never mentioned that in your post.

Shift solenoids are for the valve body for shifting. Engaging in gear is mechanical not electrical.

Roy
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Monday, July 23rd, 2018 AT 1:59 AM
Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 8 POSTS
Sorry, I am obviously dealing with some electrical issues, so my obd11 keeps throwing me codes. Where do I even begin.
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Monday, July 23rd, 2018 AT 2:02 AM
Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 8 POSTS
Codes, C0899, u2107, c0561, p0961. Alternator 14.64 volts. Battery 12.10 volts, p0010, c0550, cat/eva/o2s/htr, c0242, p0641, p0107, p0452, p0532. I am certain that this was done intentionally. As I had no issues prior.
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Monday, July 23rd, 2018 AT 2:10 AM
Tiny
DUSTINMICHAEL1984
  • MEMBER
  • 8 POSTS
Is it a lost cause? It is my only means of transportation to work. It was a gift from my grandfather for last Christmas to me and my wife.
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Monday, July 23rd, 2018 AT 2:11 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay.

C0899

C0899
Descriptor
Probable Causes
Electronic Brake Control Module (EBCM)
Power Steering Control Module (PSCM)
c0561, related to the 899
c0961 this needs to be checked. If the pressure solenoid is stuck open it may and I just mean may be the issue.

P0961
Descriptor
4T45-E Transaxle
4T65-E Transaxle
6T70/6T75 Transmission
Probable Causes
Control Solenoid Valve Assembly
Pressure Control Solenoid Valve
Transmission Control Module (TCM)

641

P0641
Descriptor
Probable Causes
Engine Control Module (ECM)

532

P0532
Descriptor
Probable Causes
A/C Refrigerant Pressure (ACP) Sensor
Engine Control Module (ECM)
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Monday, July 23rd, 2018 AT 2:27 AM

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